How to Convert Kilograms to Tonnes (kg to t)
Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds. This guide shows how to convert kilograms into tonnes by hand, with examples and a quick-reference table.
The conversion
To convert kilograms to tonnes, multiply the value by 0.001. To go the other way, divide by the same number (or multiply by 1,000). For a quick estimate, multiply by about 0.001.
Tonnes = kilograms × 0.001
Worked examples
- 3 kg = 0.003 t
- 12.5 kg = 0.0125 t
- 75 kg = 0.075 t
Kilograms to Tonnes table
| Kilograms | Tonnes |
|---|---|
| 1 kg | 0.001 t |
| 2 kg | 0.002 t |
| 5 kg | 0.005 t |
| 10 kg | 0.01 t |
| 20 kg | 0.02 t |
| 25 kg | 0.025 t |
| 50 kg | 0.05 t |
| 100 kg | 0.1 t |
| 250 kg | 0.25 t |
| 500 kg | 0.5 t |
| 1,000 kg | 1 t |
Common questions
Is kg to t exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Tonnes to Kilograms converter.
Mistakes to avoid
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
For any value, use the Kilograms to Tonnes Converter or browse all weight converters.
Run your own numbers: Kilograms to Tonnes Converter